Електронний архів

Національного університету "Львівська політехніка"

Архів зберігає опубліковані наукові матеріали переважно працівників Університету. Також доступна можливість "самоархівування"


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Recent Submissions

Urban public transport policy in the conditions of COVID-19
(Видавництво Львівської політехніки, 2020-10-10) Popovych, Pavlo; Poberezhny, Lubomyr; Shevchuk, Oksana; Vikovych, Ihor; Skyba, Olena; Poberezhna, Lubov; Yasrebov, Taras; West Ukrainian National University; Ivano-Frankivsk National Technical University of Oil and Gas; Lviv Polytechnic National University; Ternopil Ivan Pul’uj National Technical University; Bogomolets National Medical University
The purpose of the research is formation of passenger transport policy by public transport from the standpoint of determining the level of safety in COVID-19 and passenger comfort with the development of basics for measuring the perception of the most important factors of public transport convenience, minimum discomfort and maximum safety. Methodology. The study was conducted in two stages - inhouse and experimental – the collection and processing of data obtained from the survey of passenger flows. Continuous field research by the tabular method which in comparison with the existing ones is the most time-consuming, but the only one that can provide maximum accuracy of passenger information for further processing of the obtained statistical data of the studied system of public transport. The information obtained by organoleptic means was entered for further processing in the special accounting map, then calculations were performed for traffic areas between the stopping points of each studied route. Findings. The results of field research using the model of discomfort allow us to correctly predict the choice of mode of transport and the behaviour of passengers when using public transport in medium-sized cities. It is proved that the artificial underloading of the vehicle to avoid tight contact of passengers does not affect the level of infection with the virus of COVID-19 and, therefore, this restriction is not appropriate. Conclusions. Formation of the strategy of passengers' transportation in the conditions of COVID-19 is possible only with the use of the characteristic indicators of the transportation of people established by the multi-criteria analysis of a transport network – the level of discomfort, vehicle filling factor, the average time of transportation, the average distance of transportation. It is obligatory to use such means of protection as masks and gloves, provide the enhanced ventilation of the salon, and organize passengers' boarding through the back door with 100 % contactless fare payment.
Aerated concrete with the use of ferruginous quartzite processing waste
(Видавництво Львівської політехніки, 2020-10-10) Malovanyy, Myroslav; Ilyash, Oksana; Povzun, Oleksiy; Kalynychenko, Valeriy; Bylym, Ludmyla; Kasich, Vitaliy; Lviv Polytechnic National University; Yuri Kondratyuk National Polytechnic University of Poltava; Donetsk National Technical University
Waste (tailings) of mining and processing plants of Kryvbas were studied by the stages of their magnetic enrichment. The granulometric compositions of the tailings, the amount of iron (total and magnetic) and the mass fraction of solid in them are determined. The expediency of disposing of ferruginous quartzite waste at the first stage of enrichment as a silica component in cellular concretes is proved. Optimal compositions of aerated concrete mixtures are determined based on the following criteria: the average density of cellular concrete in the dry state and its compressive strength.
Development of detergent recipe with improved environmental characteristics
(Видавництво Львівської політехніки, 2020-10-10) Slyva, Yuliia; Verenikin, Oleksiy; National University of Life and Environmental Sciences of Ukraine
The research on the development of an innovative formula of a synthetic detergent with improved environmental properties, which meet the environmental standard of SOU OEM “Detergents and cleaning products. Environmental criteria for life cycle assessment” is carried out. The accumulated theoretical and practical experience is generalized, the general scheme of designing and development of new goods taking into account features of detergents with the improved ecological characteristics is created.
The assessment of the environmental performance management in Ukrainian airports
(Видавництво Львівської політехніки, 2020-10-10) Radomska, Margaryta; Mushta, Marina; National Aviation University
The comparative analysis of the environmental policy and performance of Ukrainian airports was conducted using specially defined parameters. To improve the existing situation we have developed recommendations on the list and content of environmental documents to be developed and implemented at Ukrainian airports, as well as possible regional environmental aspects of airports to be accounted in their policy.
Clean utilization of municipal solid wastes and alternative fuels derived from it
(Видавництво Львівської політехніки, 2020-10-10) Topal, Alexander; Holenko, Iryna; Haponych, Luidmyla; Coal Energy Technology Institute of National Academy of Sciences of Ukraine
For the municipal solid waste (MSW) to be used in a proper way, it is necessary to implement clean technologies capable of thermal treatment of MSW and RDF in order to produce heat and electricity while meeting current ecological requirements. Nowadays, a number of technologies for MSW/RDF thermal treating are being used worldwide. Among them, the most proven technologies, applicable for industrial introduction, have been considered while analyzing their advantages/ disadvantages accounting for local conditions of Ukraine.